This question already has answers here: How do I check if an object has a specific property in JavaScript? (30 answers) Closed 8 years ago. Which is the right...
var obj = { name: "Simon", age: "20", clothing: { style: "simple", hipster: false } } for(var propt in obj){ console.log(propt + ': ' + obj[propt]); } How does...
What’s the best way of checking if an object property in JavaScript is undefined? 50 50
How do I check if a particular key exists in a JavaScript object or array? If a key doesn’t exist, and I try to access it, will it return...
This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. What is the most efficient way...
Create a copy constructor: class DummyBean { private String dummy; public DummyBean(DummyBean another) { this.dummy = another.dummy; // you can access } } Every object has also a clone...
By “undefined object as a parameter”, I assume you mean that you’re looking to write a function that doesn’t specify the type of the object in the function declaration,...
What is the best way to go call a function, given a string with the function’s name in a Python program. For example, let’s say that I have a...
You forgot the .class: if (value.getClass() == Integer.class) { System.out.println("This is an Integer"); } else if (value.getClass() == String.class) { System.out.println("This is a String"); } else if (value.getClass() == Float.class)...
You have two ways to do that, both use the Arrays utility class Implement a Comparator and pass your array along with the comparator to the sort method which take it as second parameter. Implement...